Steel sheet-piling.



O. G. GONKLING. STEEL SHEET FILING.

APPLICATION FILED NOV. 11, 1908.

Patented Jul 26, 1910.

ururno s'mrns Parana? OFFICE.

CLOUD o. ooNxLmcafor BUFFALO, NEW YORK, ASSIGNOR TO LAGKAWANNA sa'enn COMPANY, OF NE YORK, N. Y., A CORPORATION OF NEW- YORK.

, 'Be it known that I, CLOUD To all whom it may concern:

v C. CONKLING, citizen of the United States, residing at Buffalo, in the county of'Erie and State of New York, have invented new'and useful Steel Sheet-Piling, is a specification.

My invention relates to steel sheet piling and consists in an improvement on the so .called well known United States piling,

in which the individual piles or sections-are constructed on-one edgejwitha groove, whose interior width is greater than the width of its mouth, and on'the other edge with 'a tongue, substantially semi-circular in cross-section, and adapted to, fit within the groove of the adjacent pile to form a sliding connection therewith; Such piles have been considerably used, but they have I certain""disadvantages, in that under the strain ofdriving, particularly in hard soils or where boulders or ledges are encountered, the tongue tends to spread the flanges of'the groove throughout a great or less length and' to pull but, thus destroying the continuity of the wall, and rendering the piling at that point useless; also the fit is too loose, that is there. is too muchclearance, per mitting too much side-play, and longit-udi-' nal-play, and the oft-setting of the piles, one after the other, destroys the alinement of the wall of piling and increases the number of pieces required for a given length of wall. This: clearance permits also longitudinal inclination of the piles, which Often increases as one pile after another is driven,

so that when it comes to closing an opening in the wall there is considerable difference in the size of the space at the top and at the bottom, which prevents su'ch closing of the opening without the use of a special piece. I have overcome these disadvantages to a large extent and have produced a pile which gives a very'strong interlock, 'with four points of contact, and opposes great resistance to separation under longitudinal and lateral stfains, by constructing the piles, as

here shown, at one edge with an enlarged ":pair of'cnrved flanges forming a pocket or groove and within the pocket atongue; the other edge is somewhat of the form of the United States piles, that is having a pair of smaller curved flanges forming, as to their inner surfaces, a groove to receive the tongue on the Opposite edge Of 'an adjacent of which the following s'rnnn SHEET-FILING.

pile, and as to their outer surfaces, a tongue to fit within the enlarged groove or pock'et Specification of Letters Patent. P te t d July 26, 1910. .epplication filed, November 11, 1908. Serial No. 482,110.

of the adjacent pile. l have thus produced a double-interlock pile as distinguished from the single-interlock style of the former piling referred to, with the results that when the tongue tends 'to spread the smaller flanges, these cannot be bent outward and the smaller groove opened without firstbending the larger flangesfon the tongue edge, and this system of double interlock immensely increases the strength of the joint against longitudinal or transverse strains,

without detracting from the flexibility of the joint.

My invention is shownmin the drawing herewith in which the reference numeralsof this description indicate the corresponding parts in all the figures. v

' Figure 1 is a fragmentary perspective view, showing three interlocked piles. Fig. 2. is a corresponding plan, illustrating also the possibilities of angular adjustment; Fig. 3- shows a modification.

In the figures, 1 indicates the pile web, 2 the shorter flanges, forming the'smaller or secondary groove, or pocket, 3, and t the longer flanges forming the larger groove, or

pocket, 5, in which is arranged the tongue 6. Evidently each pocket is of greater width in its interior than 'atits mouth.-

. The outer surfaces 8 of the shorter flange 2 are substantially concentric with the lnner surfaces 9 of the larger flanges 4, permitting the sections to be driven at different angles to each other and permittin them to adapt themselves in driving to (i bstacles and to varying conditions in the soil, so as better to preserve the general alinement of the wall I of piling. This form of pile has comparatively thin end edges, so that driving will be comparativelyeasy. And when the piling is in position, there will be a considerable space left in the smaller groove and also in the largerv groove between the two pair of flanges, which facilitates driving and gives space for displaced material. Such material generally packs in said spaces rendering the joints practically water tight. Other material may be introduced into the pockets for loo flanges and the tonguewhere the-parts are in contact, or in contact as near as may be. L

without impeding free driving While these pile sections may be formed or constructed in various ways-and from any suitable material yet it will'be understood that I prefer to make them in onepiece and ,to-roll'them from steel as a completearticle.

The advantages of my invention may be obtained in a lesser degree bythe form of piling shown in Fig. 3, in which only one longer or guard flange 4 is provided on each section. In this modified form the weight issomewhat diminished and this form might be desirable for some purposes and easier to roll, but generally speaking it is'not so good as the form of Figs. 1 and 2. As there is only one guard flange in the modified form.

that is semicircular, or less insection or larger or smaller, for instance in Fig. 2 one tongue is cut away or. grooved to reduce the weight. 1

' Having thus described my invention, what I claim is 1 l. A pile section for steel sheet piling, having in combination a web, a pair of smaller flanges along one edge of the web forming a groove and on theother edge a tongue adapted to fit the said groove on an adjacent section, and at least one guard flange adapted to fit outside of the smaller flanges on an adjacent section.

'2.-A' pile section for/ steel sheet piling having in combination a web, a pair of similar flanges along one edge of the web, forming a groove having a mouth less in width than the internal width of the groove, and along the other edge a tongue to engage in said groove, said tongue being less in lateral length than the groove but greater than the mouth along the tongue edge, a'larger pair of flanges forming a pocket around the tongue to receive within it the first flanges of an adjacent section, said pocket,being greater invinternal Width than its mouth.

3. A pile 'section for steel sheet pilingas an integral article rolled from steel, consist ing of a web, along one edge of the web a pair of larger or guard flanges forming apocket, a tongue in said pocket and along the other edge of the web a pair ofsmaller flanges forming -a'. groove, said smaller flanges being adapted to fit within the larger flanges and to fit around the tongue of the opposite edge on adjacent section,'and to engage with said opposite parts, with at least four lines of contact or substantial contact, making a particularly water tight oint between the parts and leaving at .least three spaces'around the tongue for the displaced the Web, and a v Witnesses:

the sin allefj flangesand the outer v surfaces'of the inner flanges being substantially concentric 'with the" inner surfaces of the outer one on the other, substantially as set forth.

flanges, so that adjacentsections can turn I 4. A pilesection for steel sheet ning having in combination a web, a pair of smaller flanges along one edge of the web forming a.

groove, and on the other edge of the web a tongue, and at-least oneguard flange {out-c side of the tongue, said groove being of sufficient size to permit angular adjustment of the pile sections, one on the other..

5. A pile sectlon for metallic-sheet piling having in combination a web, a pair of smaller flanges along one edge of the web forming a groove, 'a tongue on the other edge of the web, and a pair of guard flanges on said second edge outside of the tongue,

the ends of'the smaller flanges and the ends.

of the guard flanges being separated sufficiently to permit angular adjustment of adjacent piles with reference to each other,

whenset in position. j 6. A pile. section for metallic sheet piling having in combination a web, a pair of smallerflanges on one edge of the web forniing a-groove, a tongue on the "other edge of the Web and a pair of guard flanges outside of the 'tongue on'saidsecond edge to form v a groove'for the. reception of the smaller flanges ,ofan adjacent. section, said smaller flanges being substantially in contact with the tongue and the guard flanges of an adjacent section along four lines of contact.

7. A pile section for steel sheet piling,- being formed in one integral piece, and having in combination a web, said web bein provided'along one edge with' smaller anges to form a groove, and along the other edge.

with an inner element and an outer element, 1 said inner element being adapted to fit within the groove and said outer element to fit outside of the flanges on an adjacentsection. 8..-An integral pile section for steel sheet piling having a. web, a pair of flanges along one edge of the'web to 'form a groove, a tongue along the otheredge of the web, and

.a pair of guard flanges outside of the tongue.

' 9. A pile section forsteel sheet piling having a web, a pair of flanges along one edge of the web, a tongue on the other edge of of the tongue.

pair of guard flanges outsidev In testimony whereof I have signed my name to this specification in the presence of two subscrrbmg wltnesses.

CHARLES S. BOARDMAN, MATTHEW J ACOBS.

.oLouD o. CONKLING; 

